WebGL1 / SceneJS visualization error on Apple Silicon

[GMI]

Hi,

i'm seeing a strange platform-specific rendering error on an open source projecet based on SceneJS.

When using an Intel based mac, the 3D model is displayed correctly, while, the same model in an Apple Silicon mac is displayed without colors.

In both cases i'm using the same O.S. version (macOS Ventura) and the latest Google Chrome version.

Do you guys have any clue on where to look to get more information on the issue?

Further reference on the project can be found here https://github.com/opensourceBIM/BIMserver/issues/1250

Thanks.

Best regards,

Giacomo